Mig Welding Uphill Technique

I graduated as photo MIG welder and was always thought triangular was correct. other tips you might appreciate is that if your handle is vertical your angle should be about right depending on your torch. and hold the center a bit longer and sharpen up the tip of your triangle or "V", just looking at this i'm pretty sure there's cavities in the center of that bead.(no offence, I know how long it takes to get that far).

well done mate , but the technique needs to be slighly changed ,, and really should have used a vert root..

Thanks.

would this technique work for a f4 filler weld?

very nice good job on vid extramly informative.

NOT AS GOOD AS ME

AGAIN; Video well done. Very informative.
5 stars All the way.

I always just go up at an angle then over horizontally, kinna like a lightning bolt. Worked to get me certified + thats the way my instructor taught me.

hold your sides a bit longer to make it flaten out even more or turn down your wirespeed a bit.

After testing hundreds of these welds done this way as well as hundreds of them done using the triangular motion, (using a break test fixture and measuring penetration) there is virtually no difference in penetration in the 2 techniques . Both methods work. The upside V motion is just one way to skin the cat. I made this video and posted it in about 5 minutes while trying to teach someone and standing off to the side so the camera could see.

I would like to add that if you weld with a filled core wire on stainless this movement is correct.

No offence and I'm glad to see video posts like this but the movement in this video is flawed, it should be a triangular movement and not an upsidedown V shape.

One second thought there is the half-moon technique that will give you more uniformed welds.

I used to think there could be cleaner welds than what's shown. However, if you are doing vertical T joints like this one, the weld is perfect. If you look close he has a flat uniformed bead with equal penetration on each side so that it's at a 45 degree angle. It is a good weld. Alot of us are use to seeing that traditional uniformed bead. Mabye on flat T's not vertical.

Boiler Makers. And no friends, alot of us are on the bench.